Cooling installation



Jan. 1, 1924 1,479,551

G. LABOLLE A CODLING INSTALLATION I Filed May 3 2 2 Sheets-Sheet 1 F/j fi GiLobo/Aa .Azt

Jan. 1, 1924 G. LABOLLE COOLING INSTALLATION Filed May 51. 1922 2 Sheets-Sheet 2 Fig.8

Aff s I Patented Jan. 1, 1924.

PATENT OFFME.

GEORGES LABOLLE, F PARIS, FRANCE.

COOLING INSTALLATION.

Application filed May 31,-1922. Serial No. 565,003.

'To all whom it may concern:

Be it known that I, GEORGES LABOLLE, citizen of the French Republic, residing at Paris, Department of the Seine, in France,

have invented certain new and useful Improvements in or Relating to Cooling Installations, of which the following is a specification.

This invention relates to improvements in cooling or heating apparatus and the primary object of the same is to provide a system whereby either cold or heat may be supplied to the various apartments of a building.

A further object of the invention is to provide a system of this character combined with ventilating means so that the air in the apartment or apartments may be circulated aloneor may be circulated while being cooled or heated.

With the foregoing objects outlined and with other objects in view which will appear as the description proceeds, the invention consists in the novel features herein- 255 after described in detail, illustrated in the accompanying drawings and more particu larly pointed out in the appended claims.

Referring to the drawings:

Figure 1 is a vertical sectional view ofan expansion device forming part of my improved system.

Fig. 2 is a top plan view of the same. Fig. 3 is a side view partly in section of a modified form of the expansion device. Fig. 4 is an end view of the same.

- Fig. 5 is a vertical sectional View of a regulating device forming part of the sys- Fig. 6 is a top plan view of the same.

4.0 Fig. 7 is a vertical sectional view of one of the combined temperature exchangers and air circulating devices forming part of the apparatus.

Fig. 8 is a transverse sectional new of the as same.

Fig. 9 is a side view of one of the tubes forming part of the heat exchanger.

Fi 9 is a similar View of another form of to e forming part of the heat exchanger.

Fig. 10 is a side view of a combined valve and switch used with the system.

Fig. 11 is a top plan view of the same.

Fig. 12 is a diagrammatic view of the entire system.

Referring first to Fig. 12 for the purpose of explaining the direction of travel of the brine used in the cooling system, it is to be noted that brine cooled in the tank 3 is pumped up the pipe 5 into the regulating tank 20, which is located atthe upper end of the system. From the tank 20 the brine descends by pipe 5 and in its descent may travel through heat exchangers 19. The

brine pumped into the tank 20 enters the same faster than it may leave the tank and this causes the level of the brine in the tank 20 to rise, and this fluctuation in the level of the brine in the tank 20 is utilized for controllng the circuit of the motor of the pump, in a manner hereinafter described.

If heat is to be provided instead of cold, then the water or other medium rises from the boiler 3 through pipe 5 and returns to 7 the boiler through the pipe 5.

The tank 3 is illustrated in Figs. 1 and 2 and it is provided with an automatic refrigerator 4, which cools the brine. The brine is withdrawn from thetank by means of the pump 2 which forces the same up the pipe 5, and this pump is driven by an electric motor 1. When the brine travelling up the pipe 5 reaches the tank 20 it travels into the same through a pipe 5 and some of the brine accumulates in this tank by passing through the aperture 5 The nipple 5* is connected to the pipe 5' and it will be noted that the aperture through this nipple is restricted, so that brine entering the tank 86 cannot pass out as fast as it enters. Consequently the brine level in the tank 20 will rise and this will cause elevation of the float 8. The float 8 operates a switch (not shown) which controls the motor 1. There- 90 fore when brine rises in the tank 20 to a Buflicient height, the motor circuit will be opened and the pump will cease to'operate.

In Figs. 3 and 4 the modified form of expansion tank consists of a chamber 20 from as which the brine is discharged by a pipe 21 into the pump 2. This tank also includes an automatic refrigerator 22 or instead of the automatic refrigerator a coil may be arranged in the tank and a cooling fluid may be passed through this coil by way of pipes. 24 and 25 for the purpose of cooling the brine in the tank. The brine is returned to the tank By means of the pipe 23. lln these figures the pipe 23 designates an overflow pipe which extends up into the tank 20 as shown at 23". 26'designates a tap for permitting air to escape from the tank 28 through the valve 27.

..As before stated, the brine from tank 20,

descends through pipe 5 and this pipe is connected to a number of heat exchangers 19, one of which is shown in detail in Figs. 7 8, 9 and 9. Said heat exchanger. comprises a number of tubular elements 10 and 10' grouped radially and assembled in such manner as to form a circui for the circula-' tion of the brine. The latt r in the example shown enters by the tube or pipe 13 at the top and escapes by thepipe or tube 14; at

the bottom. In the arrangement shown by way of example, the heat exchanger is of the horizontal type having pockets 11 at its ends for the collection of the condensate.

In a vertical type of temperature or heat exchanger the condensate are collected at the bottom of the apparatus.

The parts or elements of the heat exchan er are shown in full lines, but if it be foun necessary, the number of these parts ma be considerably increased, the additlonl parts being indicated in dotted lines.

These elements or tubular parts are mounted in a cylindrical metallic casing 15 open .for

a certain part of its length as at 15, the length of the opening corresponding to the length of the elements through which the brine circulates. The position of the open ing 15 relative to the apartment or the like to be cooled or ventilated, is such as indicated for example in Fig. 12. Electrically actuated fans 12, 12 (Fig. 7) are placed near the ends of the opening 15, the function of these fans being to create an in creased air pressure and circulation of the air past the elements conveying the brine.

The system includes a combination valve and switch for each heat exchanger, c the valve controlling the passage of the brine through the heatexhanger and the switch controlling the operation of the fans 12, and in order. to permit'this,- a structure of the t pe disclosed in Figs. 10 and 11 is employed.-

his structure includes a valve casing 17 to which brine is admitted by a pipe 17' and from which it is discharged through a pipe 17". The valve proper has a stem connected to a. handle 16 and the mani ulation of this handle permits opening an closing of the valve. The handle carries. an extension 16 extension 16 and contacts navaeei in the circuit of the motors which drive 1 the fans 12, so that the handle 16 may control the operation of said tans. Referring to Fig. 11, the position A of the handle corresponds to the closed position of the valve and the positions B, B, C and C correspond first, to cooling and ventilation with two speeds and the second to ventilation only, with two speeds.

In operation, assuming that the valves of all the heat exchangers are closed, brine will be'prevented from passing down the pipe 5' and the pump 2 may continue to operate until the level of the brine of the tank 20 has raised the float 8 and opened the circuit of the motor 1. At this time there will be no circulation of the brine through the system. lit" now one of the valves of the temperature exchangers is opened, the brine will commence to flow downwardly from the tank 20 through the open heat exchanger and pipe 5' intoKthe tank 3. As soon as the float 8 has descended suficiently the motor circuit will be closed and the pump 2 will then draw brine from the tank 3 and force the same up to the tank 20. lln this manner the cold brine finally reaches the heat exchanger which is open and as long asthe valve of thisheat exchanger remains in open position, the brine level in the tank 20 will rise and fall intermittently and the pump 2 will function intermittently to replace the brine withdrawn from the tank 20.

From the foregoing it is believed that the construction, operation and arrangement of parts may be readily understood, and it is apparent that changes maybe made in the construction illustrated without departing from the spirit of the invention as expressed associated with one of said tanks for controlling the operation of said pump. a 2. A system as claimed inclaim 1 in which one of said tanks is provided with means for cooling the interior of the same. w 3. A system as claimed in claim 1 includmg an automatic refrigerator arranged within the lower tank. 1

4. A system as claimed in claim 1 includ=' an electric motor for driving said pump,

isaid motor being controlled by the controlling means arranged .in one of said tanks.

5. A system as claimed in claim 1 including a fan associated with one of said heat 5 exchangers, and means for controlling the passage of medium through said heat exchanger and the operation of said pump.

6. A system as claimed in claim 1 including a fan associated with one of said heat GEORGES LABOLLE. Witnesses ALEXANDER P. GRUGER, EM. LABOLLE. 

